mxcl/homebrew — pull request #22854 by adzenith (2013-09-26 15:19:20+00:00)
Title: upgrade.rb: Fix plural_s when number = 0

Currently Upgrade prints out:
"Upgrading 0 outdated package, with result:"

This change makes it print:
"Upgrading 0 outdated packages, with result:"
correctly pluralizing "packages".